Roger said: Combined with NAD’s matching Masters Series M27 seven-channel power amplifier -- or, for that matter, any high-quality power amp -- the M17 should provide excellent performance with both multichannel and stereo recordings.

Roger said: In the Masters Series M27, NAD has succeeded in delivering a practical, cost-effective implementation of Hypex’s excellent-sounding Ncore amplifier technology. If you’re looking for a powerful, extremely high-quality, seven-channel amplifier that won’t break the bank, I can’t recommend the M27 highly enough. In fact, I can’t think of a comparable product in this price range.

Roger said: The Halo A 31 has a clear, detailed sound that belies its price, combined with just a touch of warmth. This blend of qualities made it a joy to listen to. Add to that its prodigious power output and rock-solid build quality, and I can assure you: It’s the real deal.